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3D hinge (revolute)

A rotation axis between two bodies: a wheel, lever, door, blade.

How to add

In 3D mode open the Mechanisms menu and choose a ready unit, or connect two bodies with a joint from the Parts menu.

Properties

Bodies A and B
The linked bodies. With no B the axis is fixed to the world.
Anchor
x, y, z relative to body A.
Axis
The direction of the rotation axis.
Limits, °
Minimum and maximum angle. The No limits button removes them.
Parts collide with each other
By default linked bodies do not collide so they do not catch on the axis.
Motor
Velocity mode spins at a set speed, position mode holds a set angle. Force, damper and stiffness are adjustable.
Keys
Two keys drive the motor forward and back; position mode takes two target positions.
Thrust
If a propeller sits on the axis, thrust equals a coefficient times rotation speed.

Tips

  • Ready units: Wheel, Motor, Servo, Car.
  • During simulation key hints appear at the bottom of the screen.

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